Standard libraries that lift up your code.
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 

51 lines
1.3 KiB

/**
* An Error base-class that also provides some additional context.
*
* All first-party error handlers in Extollo can render the context as part of
* the display of the error (e.g. in the console, in the HTML response, &c.)
*
* @example
* ```typescript
* function myFunc(arg1, arg2) {
* // ...do something...
* throw new ErrorWithContext('Something went wrong!', { arg1, arg2 })
* }
* ```
*/
export class ErrorWithContext extends Error {
public context: {[key: string]: any} = {}
public originalError?: Error
constructor(
message: string,
context?: {[key: string]: any},
) {
super(message)
if ( context ) {
this.context = context
}
}
}
export function withErrorContext<T>(closure: () => T, context: {[key: string]: any}): T {
try {
return closure()
} catch (e: unknown) {
if ( e instanceof ErrorWithContext ) {
e.context = {
...e.context,
...context,
}
throw e
} else if ( e instanceof Error ) {
const ewc = new ErrorWithContext(e.message, context)
ewc.stack = e.stack
ewc.name = e.name
ewc.originalError = e
throw ewc
} else {
throw e
}
}
}